在AutoCAD2009中，激活发布图形集的命令是（）。
A.PUSH
B.BLISH
C.PUBLISH
D.PRBLISH
参考答案：C
It's no use ___ him in that way.
A．to talk to
B．talking to
C．to talking to
D．to have a talk to
为什么要设置低压缸喷水？何时投、退出？
